Question: Use elementary row operations to obtain an upper triangular matrix 5 10 15 and use it to compute det(A) if A = -3 6

Use elementary row operations to obtain an upper triangular matrix 5 10

Use elementary row operations to obtain an upper triangular matrix 5 10 15 and use it to compute det(A) if A = -3 6 -19 2 12 -2

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